// outside compilation. We should not move this node out of XLA computation.
// Attribute value will always be boolean value "true".
extern const char kXlaIsPlaceholderForArg[];

// Information for XLA computation.
struct XlaClusterInfo {
  // Add an explicitly-defined default constructor for this class.
  //
  // The compiler may delete the default constructor here because

const char kXlaIsLiftedArgAttrName[] = "_xla_is_lifted_arg";
const char kXlaLiftedArgOutsideCompilationAttrName[] = "_xla_lifted_arg_oc";
const char kXlaOutsideCompilationInputsAttrName[] = "_xla_oc_inputs";
const char kXlaIsPlaceholderForArg[] = "_xla_is_placeholder_for_arg";

Status PerformStaticShapeInferenceBeforeEncapsulation(Graph* g) {
  // Perform shape inference.
  std::map<int, InferredShape> arg_shapes;
  GraphShapeInfo shape_info;